Klaus Doelle, Yue Qin, Qian Wang
DOI:
10.9734/jerr/2020/v11i117048
Page: 1-7
Bryan Christian S. Bacquian
DOI:
10.9734/jerr/2020/v11i117049
Page: 8-14
Ogbebor Daniel, Ndekwu, Benneth Onyedikachukwu
DOI:
10.9734/jerr/2020/v11i117050
Page: 15-21
E. Graycochea Jr., F. Gomez, R. Rodriguez, B. Bacquian
DOI:
10.9734/jerr/2020/v11i117051
Page: 22-26
Joseph Benedict Bassey, Isaac F. Odesola
DOI:
10.9734/jerr/2020/v11i117053
Page: 27-37